Changeable-speed gearing.



No. 871,233. PATENTED NOV. 19. 1907.

A. L. MUREN. CHANGEABLB SPEED GEARING.

APPLICATION FILED 00T. 25, 1906.

3SHEBTS-SHEBT l.

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No. 871,233. PATENTBD NOV. 19. 1907.

A. L. MURBN. GHANGEABLE SPEED GEARING APPLICATION FILED 00T.25, 1906.

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{i} A M40/7%@ vNo. 871,233. -PATENTED NOV. 19, 1907.

A. L. MUREN. CHANGBABLE SPEED GEARING.

APPLIOATION FILED 00125, 1906.

l3 SHEETS-SHEET 3.

NITEDTSTAIES ALBERT L. MUREN, OF BELLEVJLLE, ILLINOIS.

cHANeEABLn-srasp GEARING.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Anplicaton filed October 25. 1906. Serial No. 840,541.

citizen of the United States oi America, re-

of St.

siding in Belleville, in the count certain new and useful. Improvements in Changeable-Speed Gearings, ot which the following is a hill, clear, and exact description,Y reference being had to the aecom-` panying drawings, forming part of this specification.

My invention relates to a changeable speed gearing for use in driving shafts at varying degreesof speed, the present gearingbeing more particularly intended for use in the operation of motor vehicles.

Figure I is a longitudinal section taken through my gearing with the arts,illus trated in the positions assumer when the gearing is to be driven reversely or in a backward direction. view to Fig. I with the gearing parts in the lpositions assumed when the gearing is to be driven. in a forward direction and at an intermediate speed. taken on line IIL-III, Fig. II. Fig. IV is a cross section taken on line IVI-IV, Fig.

II. Fig. V .is a cross section taken'on line V-V, Fig. II. Fig. VI is an elevation of portions of the peripheries of the transmison pinions in the gearing.

1. designates a housing having associated therewith journal members 2, 3, 4, 5, 6, and 7, in which the shafts and other parts of my gearing are journaled.

9 designates a slidable drive main shaft and 1() is a hollowY internal gear clutch member carried by said shaft and havingan intelnal gear `11, the said clutch member being preferably otbarrel shape. The drive shaft is tubular at its forward end.

12 is an auxiliary drive shaft, the rear end of which is loosely fitted in the forward end of the drive shaft and the forward end ol" which is supported by a cross bar 13 attached to the housing l..

14 designates a high speed transmission Ipinion fixed to the auxiliary drive shaft 12 at its forward end by suitable means, such as a key 15.

16 is an intermediate speed transmission oinion loosely mounted on the yauxiliary drive shaft and provided with a sleeve .17.

ls' is a low zpeod transmission pinion loosely mounted oi he sleeve of the inter- Fig. II is a similar Fig. III is a cross section,

mediate speed transmission pinion and having a sleeve 19.

. 20 is a high speed clutch wheel fixed to the auxiliary drive shaft 12 and which is complementary to the forward high speed transmission pinion 14.

21 is an intermediate speed clutch wheel fixed to the sleeve-17 oi the intermediate speed transmission pinion 16 and which is complementary to sai-d intermediate speed transmission pinion.

22 is a low speed clutch Wheel fixed to the sleeve 19 of the low speed transmission pinion 18 to which low speed transmission pinion'said low speed clutch wheel is complementary. 23 is a reverse clutch wheel that is also ixed to 'the low speed transmission pinion sleeve 19 and which is preferabl formed integral with the low speed clutc Wheel 22.

All of the clutch wheels 20, 21 22 and 23 are'adaptd to be meshed by the internal gear 11 of the clutch member 1() at different times, as a consequence of the d rive shaft 9 beinT shifted longitudinally to move said clutdli member 10 relative .to said clutch wheels, as will more fully hereinafter appear. The drive shaft 9 is su ported in the rear journal box 2 of the iiousing 1. and the sleeves with which the speed pinions and clutch wheels are associated are -supported in the forward journal box 3 in which the outermost sleeve 19 of said sleeves is seated.

24 and 2l designate sections ol. a divided driven shaft which in ay in the use of the gearing upon a motor vehicle be in the forni of the driving axle of said vehicle. At one side of the housing 1, the driven shaft section 24 is journaled in the journal box 4 lot' said housing.'

-Iioosely seated in the journal box 7 at the opposite side oi the housing is a sleeve 25 in which the driven shaft operates.

26 is a carrier, preferably of shell form, that is fixed to the sleeve 25 end from which extends a sleeve 27 located in the journal box 6 of the housing 1.

2S and 29 are mating gear wheels of a differential gear portion of my gearing, the said mating gear wheels being fixed respectively to the driven shaft sections 24 and 24.

30 is a pinion carried by the carrier 26 to which it is journaled preferabl bolt 31. The inion 3() constiutes a meinber of the di erential gear and it has the wenn .or

. sleeve ofthe seeondary intermediate speedv iftilit of transmitting motion from the gear whee 28 to the gear, wheel 29 or in other words from the driven shaft section 24 to the driven shaft section 24. The purpose in introducing the differential gear into my gearing in connection with the sectional driven shaft, is toprovide for the operation of thetwo shaft sections unison While atthe same time permitting differential rotation of the two sections when occasion requires it.

32 designates a sleeve loosely mounted upon the driven shaft section 24 and susceptible of longitudinal movement on said driven shaft section. This sleeve is provided with a collar or annular rim 33 at the two sides of which are clutch teeth 34 and 35. One end of the sleeveextends into the sleeve 27 of the differential gear carrier 26 and is connected to said carrier sleeve by a spline 36 whereby theseparts are united for rotation combinedly while permittinglongitudinal movement oi the sleeve 32 on the driven shaft section 24.

37 is an internal gear clutch member iixed to the sleeve 32 also being preferably of barrel shape. 38 are the gear teeth of this gear clutch member. gear clutch member 37 being fixed to the sleeve 32 saidl member is susceptible of longitudinal movement with saidl sleeve.

39 designates a secondary high speed transmission'gear wheel that is provided with a -hub sleeve 40 h; :sel v fitted to thesleeve 32.

This high speed, transmission gear wheel meshes with' theiiiigh speed pinion 14 and it is provided with clutch teeth-41 that are adapted lto be engaged by the clutch teeth 34 of the sleeve 32. v.

y 42 is a secondary intermediate speed transmission gear wheel that meshes'with the intermediate speed transmission pinion 16 and 1s provided with a huh sleeve 4.2a which surrounds the hub sleevefof the secondaryv high speed transmission gear wheel 39.

43v is a secondary low speedtransmissi'on gear wheelV that meshes with the low speed transmission pinion 1S and is provided with a hub sleeve 44 which surrounds` the hub sleeve of the secondary intermediate'speed transmission gear Wheel 42.

45 is a clutch wheel carried by the hub transmission ear wheel 42, and 46 is a clutch Wheel'cairr' .y the hub sleeve of the .second-v rhbwspeed transmission gear Wheel 43.

' adapted to mesh at different times, accordlng to the speed to be acquired during-the pperation of the'gearing,-With the teeth of the lnternal gear clutch member 37.

47 designates a reverse gear Wheel which 1s opposed to .the secondary transmission gear wheels 39, 42 and '43, and the teeth of Which-mesh with the low speedftransmission pinion 178;' The 'reverse gear wheel.is }prof By reason 'of the internalof these clutch wheels 45 and 46 are -'through A f 50,"A the rteeth .Qf thai {3l-utah member beingg vided With'a hub 48 that is seated in the housing 1 and.' provided with a fork 51 that is fitted to the main drive shaft El through the medium of rims 9 spaced apart from each other on said shaft. rod is adapted to be moved longitudinally by power applied thereto in any suitable manner and when so moved acts to move the main drive shaft in a longitudinal direction, with the result of shifting the internal gear clutch member 10 relative to the speed clutch wheels 20, 21 and 22, and the reverseolutch wheel 23, in order that the gear teeth of said clutch member 10 may be brought into niesh with either of said vspeed clutch wheels. 52 is a supplemental shifter rod that is connected at 53 to the main. shifter rod 50. The supplementalshifter rod has in turn connected toit at-54 a lever 55 that is fixed to a rock shaft 56 mounted in the housing 1 and extending transversely of the driven shaft section 24., as seen most clearly in Fig. V; .57 is a forkiixed to the rock shaft' and fitted tothe clutch collar33 of the sleeve 32, the said fork having the office of imparting longitudinal movement to said sleeve 32 when the shifter rods 50 and 52 are moved.

In the practical use of my .gearing the operation isv as follows: When the parts are in the positions illustrated in Fig. I, the gearing is set for reverse motion, due to the reverse clutch wheel 23 being in mesh with' the (fear teeth "of the internal gear clutch,- rmem er lO'carried'by the drive shaft 9, the

The main shifter" reverse gear wheel 47 being'in mesh with the i low speed transmission pinion'k 18 (with which it is in mesh at all times) and the clutch teeth 35 carried by the sleeve 32 being in engagement with the clutch teeth i9l of the reverse gear wheel 472` The sleeve 32 being connected with the carrier-26 through the sleeve 27 of said carrier, the carrie'ris rotated with the reverse gearl Wheel47 and the pinion 30 associated with saldi Barriergis caused to operate between the' differentialgear wheels 28 and 29,' withy the result of impartin r rotation to the driven shaft sections 24 an 24 in the direction indicatedbythe arrow Fig. I, When the gearing-is'ftogbe ioperated in a 4forward l.direction theijdive shaft 9 is shifted longitudinally' andi in a rearward direction to move' theinternal gear, I

clutch member .10 toward and indio'engagement ,with the low speed clutch'wheelf 22 y the mediumlof vthe'fmain shifter rod whereby its clutch collar 23H moved in a l 47 and in the event of the eluteh teeth S5 of `transmission pinion 18, said low speed `gear clitch nieinbeii OA are-carried to the inoperates the differential gear members.

carried .to said low speed clutch wheel from l either their positions in. engagement with the i reverse clutch wheel 23 or an inoperative position between the reverse gear wheel :mit i the low speed cliiteh wheel. At the same time `that the drive shaft and its internal geai'eliitch nieniber are shifted, longitudinal i movement is imparted to the sleeve 32 direction away from the reverse gear wheel said sleeve being in engagement with the i clutch teeth of said gear wheel they :ire l withdrawn .from sueh engagement. The i shifting of the sleeve 32 n a longitudinal dii rection causes the internal gear eluteh meml ber 37 iiXed to said sleeve to be carried from l a position in which it was previously located l inwardly from the clutch wheel 46 attaehed l to the low speed secondary transmission gear wheel; 43 into engagement with said clutch wheel 46. As a consequence the low speed clutch wheel 22 which is driven by the drive shaft 9 is eaiisedto drive the low speed transmission pinion acting to drive the secondary low speed transmission gear wheel 43, which in turn, through the medium of its eliitch Wheel 46, drives the sleeve 32. rIhe sleeve in turn acts to drive the carrier 26 and the .other arts of the differential gear by Whichthe c riven shaft sections 24 and 24 are operated. The drive shaft 9 being shifted to a `greater degree the teeth of the internal terinedia'te speed clutch wheel Qi., and the parts of the gearing will be at this time in the positions illustrated in Figs. il, the internal gear clutch member 37 being at such time in engagement with the eluteh wheel 45, Alixed to the Asleeve '42 of the secondary iiiteiinel diate speed transmission gear wheel 42. l- -The intermediate speed eluteh wheel 21 then aetsto drive the intermediate speed transmission pinion i and said intermediate speed"transmission pinion drives the intermediateV gear wheel 42, and the elutch wheel 45 associated therewith, whereby th@ inesliinginternal gear olii-teh. member i7 ifsA driven and in turn serves to drive the. sleeve 32 that.

A still fiirtlieri longitudinal movement ol` the drive shaft causes 'the teeth ol` the internal gear `clutch member l() to be carried intol `mesh with the. high speed eliiteh Wheel 20, and said high s eed clutch' wheel serves to operate the auxiliary drivesl'iaft l2 and the high speed transmission pinion 14 When the internal gear clutch ,member l() is moved to effect engagenientibetween its teeth :and the high speed elutchwheel 20 the sleeve'32 is simultaneously shifted in a longitudinal direction to an extent sufiieient to earry the clutch :teeth 34 carried thereby into engagei liient with the clutch teeth 4.1 earried by the l secondary high speed transmission gear wheel 39 and thev internal gear clutch member 327 into the position illustrated in dotted lilies Fig. Il, thereb)y removinfsr said internal gear Chiti-h member frouiengagement with 1 the eliiteh wheeld.

As a consequencemotionis transmitted directly from the seei onda-rv high speed transmission `gear wheel` It!) driven bv the high speed transmissioi-- ,pinion lei to the sleeve 31? to cause said.' sleeve to drive. the differential gear iffirriei 26 and the other parts of the diliei'ential gear at a maximum speed in driving the drivenshaft sections 24 and '.24'.

i. Vln a changeable speed gearing, the coinbination ol' a driven shaft, a longitudinally shiftable clutch member having an internal gear and a sleeve whereby it is mounted on said shaft and having; driving;.connection therewith, a iluriilitv of sleeved `gear inemn bers, either oi` which is adapted to cooperate with the internal gear of said shiftable clut'oh member, and means for driving said geary nienibe rs singly, substantialll,r as set forth.

2. In a changeable speed. gearing, the com bination of a driven shaft, Ya driving' clutch member havin;r aninternal gear and a sleeve whereby it is mounted on theshaft, sliiftahle longitudinally of said shaft and havingr driving connection therewith, a plurality ol",v .sleeved gear members surrounding the sleeve of said driving elutch member and adaptedto cooperate with the internal gear'thereof,

and means for driving said gear members singly, substantially as set forth..

" 3. In a changeable speed sparing,` the com'- binatioii ol a driven shaft, a driving clutch member having,r an internal gear and a` sleeve ii'hereby it is mounted on the shaft, shift-able longitudinally of said shaft and having` driving connection therewith, a. plurality of sleeved gear members surrounding thel sleeve of said driving,r chiteh member, and ineans for driving said gear members singly; the inner one of said gear members and the sleeve of said drivingi clutch in einher being provided with oluteh means, substantially as set forth. 4, ino changeable speed leiirineq the 00m7- bination of a driven shalt, a i'lrivingiclutch member having an internal gear and a'sleeve` whereby it is inoiintfedlon the shaft, shift-able li'iiigitudin'ally of said shaft and 'having d'riv' ing connection therewith, a plurality of sleeved gear members surroundingr the sleeve of said driving; clutnh member, means for driviirgr said gear mei'nbers singly, a clutch member carried by the inner one of said gear members, a clutch member earried by the sleeve of said driving lclutch member 'and arranged for. engagement with the olutchniem ber of the said inner gear member, substantially as set forth.

ln a changeable s eed gearing, the combination of a driven s iaft, a driving clutfih i io ' gageinent with said clutch Wheel, substa`n-r member shitable longitudinally of said shaft l and having driving connection therewith a plurality of gearmembers surrounding-said driving clutch member, meansffor driving said gear members singly, a eliitchwh eel car--v ried by one of said gear members, andv aninternal gear clutch member carried b said driving clutch' member and arranged or entially as set' forth.

6. In a chan' eable speed gearing, the oombination of a' rive'n shaft, a barrel. shaped drivingfcliitoh member shiftable longitudinally of said shaft andhaving driving connec- ,11.5

" .siurounding said driving clutch member,

tion therewith, a plurality oi vgear members means f ordriving said gear members singly, a elutch member carried by one of said gear membera, a clutch member carried by said driving clutch member and arranged i'or engagement with the clutch member of said ear member; one of said members and said i riving clutch member being arranged for interlooking engagement with each other, silbstan'tially as set forth.

- 7. In a changeable speed gearing, the com- Y bination of a driven shaft, a driving cluteh ment lwith each member sbiftable longitudinally of said shaft and having driving connection therewith, a plurality of gear members surrounding Asaid driving clutch member, means for driving said gear nii-,mbeis singly, a clutch wheel oarried by one of said gear members and an internal gear oluteh member carried bv said driving clutch member and arranged or engagement with said clutch Wheel; one of said gear members and said driving clutch member being arranged for interlocking engageother,1 substantially as set forth. i l' 8. In a changeable s eed gearing, the comv,biiiation of a driven s iaft, a driving elutohv niember'shiftable longitudinally of said shaft and 'having driving connection therewith, a plurality of said Pear mein rs singly, clutch 'wheels'eari ied Qysaid gear members, and an internal gear eluteh.- member carried by saiddriving l gear members surrounding said 4 driving elutehbnember, means fordriving clutch member and arranged for engagement with either of said- 'clutch Wheels, substantially as set fort l 9. In a changeable speed gearing, the combination of a :Iriven shaft, a driving clutch'` member shiftable longitudinally of said shaft and haviig connection therewith, a plurality .of gear members surrounding said driving clutch member, means for driving said -gear members singly, clutch Wheels carried by said gear members, and an internal gear clutch member carried by saidY driving' clutch member'and arranged for engagement with either of said clutch wheels; one of said gear memdriving said reverse gear wheel; said sleeve and gear Wheel being provided with clutch members adapted to coperate with each other, substantially as set forth.

11. In a changeable speed gearing, the combination of a shaft, adriving clutch membershiftable longitudinally of said shaft` and having driving'eonneetion therewith, a plurality vof transmission gear members surrounding said driving oliiteh member and ar' ranged for ooperation therewith, pinilons cooperating with said transmission gear mem-y b.ers,.eluteh Wheels for driving said pinions, a longitudinally sh'iftable drive shaft provided Wit'h van internal gearoluteh member for engagement with said clutch Wheels, andl means for simultaneously shifting said drive shaft. and said first named driving clutch;

member, substantially as setforth.' ALBERT VLilli/runnin In presence of I l I R; W. ROLUEQUES.' f

EDMUNDBURKE. 

